Scrubbing-machine



A. H.- ROWE. SCRUBBING MACHINE APPLICATION FILED APR. 26, I920.

Patented Oct. 11,192L

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ALFRED Hnnmrnown, or wrnnrrndrmnrrona, oanana.

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a Specification of Lettersratent. -Pg ,tygm1tq d@@j; M, 92

Application filed 111111126, 1920. Serial No. 376,693.

To allwhomit may 60mm i Be itknown that L'Anrnno Hnnnr Rown,

f ofthe city of Winnepeg, inthe Province of Manitoba, Canada, haveinvented certaln new and useful Improvements in Scrubbing- Machines,.off which the following is the I specification.

The invention. relates to I improvements scrubbing machines and theobject of the invention is to provide a motor driven ma,

chine which when: inoperation will scrub H the floor, the attendantonlyrequiring to guide the machine from place toplace. 4

A; further object is.toi'construct the ma chine sdthat the brushlthereofcan be ad ju'sted in height andso that the .water used in scrubbing.will: be carried by the machine and directed'to the brush and toward thei l floor in controlled quantities.

With the above more important objects in view the inventlon consistsessentiallyin a frame mounted on suitablecarriagewheels,

a motor driven brush adjustable in respect tothe floor, a water tank andmeans for feeding Water from the tank to the brush in limited quantitiesthe parts being arranged a and constructed as hereinafter moreparticularly described and later, pointed out in the appended claims,reference being had to the accompanying drawing in which a Figure 1 is aside View of the complete machine.

Fig. 2 1s a plan vlew thereof.

Fig. 3 is avertical sectional view centrally through the front end ofthe machine.

Fig. 4: is-a sectional view at M, Fig. 1 and looking forwardly.

Fig. 5 is a horizontal sectional view at 5-5 Fig. 3 and lookingdownwardly.

Fig. 6 is an enlarged vertical sectional view through. the front end ofthe water tube. a

In the drawing like characters of reference indicate corresponding partsin the several figures. j

1" represents a frame presenting a platform carried forwardly by a pairof carriage wheels 2 and 3 andrearwardly by a i swiveled caster wheel 4which is arranged so that it can be steered by an extending handle 5.Inthe present instance slots are made in the frame to let the frontwheels project through and the said wheels are rotatably mounted on theends of an axle 6 permanently bolted to the underside of the trally inadvance of the front wheels.

is a circular brush secured permanently to the lower end of the shaft 18and engageable Y which can be sired.

wheels I locate a pair of upright guides 7 and 8 which have their lowerends permaln a location directly adjoiningthe front frame. The aboveparts form a carriage steered about the floor as dea nently secured tothe sides of the frame and 7 their upper ends connected bypa cross: head9. The guides receive slidably a vertically disposed head plate'lOwhichis supported and adjustably suspended by means of a centrallydisposed jaekscrew 11 carried by the i cross head. 9 and fitte'dwith ahand wheel 12- To the lower end of the head plate 10 I securepermanently a forwardly extending bracket or auxiliary platform 13 whichcarriesparts later disclosed. i

14: is an electric motor permanently secured to the head plate andhaving the drive shaft 15. thereof located in an uprightposition andfitted at the lower end with a driving pinion 16 which is adapted tocontinuously mesh with a gear wh'eell'? secured to r the upper end ofthe brushshaft 18 which is rotatably carried in the bracket and pro--jects through the frame 1 in a position cenwith the floor to bescrubbed.

20 and 21 are the customary electrical feed wires leading to the motor.These wires are fitted with the usual screw plug (not shown) whereby themotor can be connected with the usual electric socket provided in aroom.

()bviously by the arrangement shown one by turning the hand wheellQ canadjust the head plate with the. result that the brush can beraised orlowered in respect to the floor.

0n the rear part of the frame I mount a 1 water tank 22 fitted with aremovable cover 23. 24 is a water feed pipe communicating with thebottom of the tank and extending forwardly of the platform in a locationbeneath thehracket and having the forward -mounted thereon, verticalguides extending or less amount obviously controls the feed of the waterfrom the tank to the brush and floor. 26 is a guard plate secured to andpassing around the front end of the plat form and inclosing the brush,thus preventing the water thrown off the brush by cenfloor he simplymops upthe water in the ordinary way.

What I claim as my invention is 1. A scrubbing machine comprising amainsupporting platform, a water tank from the platform forwardly'of thetank, an adjustable supporting structure carried between said guides, abrush located beneath said platform and suspended from said sup portingstructure so as to be movable with the latter, and an outlet fromthetank extending-forwardly upon the platform beneath the supportingstructure to a point in advance of said support ng structure, thedischarge end of sald conduit being extended downwardly through theplatform to a point directly in advance ofthe brush and being providedwith a discharge orifice arranged directly opposite the brush bristles.

2. A scrubbing machine comprising a main supporting platform providedwith a vertical aperture forming a bearing, a vertical shaft slidable insaid bearing and equipped at its lower end with a brush, a motor gearedto the upper end of said shaft, and adjustable means serving to supportboth the motor and the brush shaft whereby the latter may be adjustedvertically without disturbing its operative connection with the motor.

3. A scrubbing machine comprising a portable main supporting platformprovided with a vertical aperture forming a bearing a vertical shaftslidable in said bear ing and equipped at its lower end with a brushadapted to rotate with the shaft, an auxiliary platform supported on themain platform and vertically adjustable thereon, said shaft beingsuspended at its upper end from said auxiliary platform so as to beadjusted therewith, and a motor carried by said auxiliary platform andhaving its shaft geared to the brush shaft.

Signed at Winnipeg, this 26 day of March, 1920.

ALFRED HENRY ROlVE.

In the presence of- GERALD S. RoxBURGH, K. B. WAKEFIELD.

